python - tf.WholeFileReader() not reading -

my code seems find jpeg image perfectly, because if mess path not proceed, printed out return match_filenames_once , there correct list of image files. following code not seem load images queue. wrong filename_queue?

here code:

filename_queue = tf.train.string_input_producer( tf.train.match_filenames_once("./resized2/*.jpg"),shuffle=false)  image_reader = tf.wholefilereader() myfilename, image_file = image_reader.read(filename_queue) image = tf.image.decode_jpeg(image_file) # start new session show example output.  tf.session() sess:     init_op = tf.global_variables_initializer(), tf.local_variables_initializer()      sess.run(init_op)      # start populating filename queue.      coord = tf.train.coordinator()     threads = tf.train.start_queue_runners(coord=coord)      in range(1): #length of filename list         image_tensor = image.eval() #here image tensor :)      print(myfilename)     print(image.shape)     #image.fromarray(np.asarray(image_tensor)).show()      coord.request_stop()     coord.join(threads) 

here output:

tensor("readerreadv2:0", shape=(), dtype=string) (?, ?, ?) 

try print shape of image_tensor

print(image_tensor.shape) 

image in code tensor, , has unknown size, because come graph arbitrary jpeg image, , tf can't define it's size, when tf create graph. image_tensor np.array image loaded disk.